OSPF Version 3 for IPv6 System Requirements
To implement OSPFv3 for IPv6, your system must meet these minimum requirements:
Junos OS Release 8.2 or later for MX Series routing platforms
Junos OS Release 7.2 or later for J Series Services Routers
Junos OS Release 5.5 or later for M Series and T Series routers
Two J Series, M Series, MX Series, or T Series routers